Annotation of prex/usr/lib/libc/stdio/local.h, Revision 1.1
1.1 ! nbrk 1: /*-
! 2: * Copyright (c) 1990, 1993
! 3: * The Regents of the University of California. All rights reserved.
! 4: *
! 5: * This code is derived from software contributed to Berkeley by
! 6: * Chris Torek.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the University nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: *
! 32: * @(#)local.h 8.3 (Berkeley) 7/3/94
! 33: */
! 34:
! 35: /*
! 36: * Information local to this implementation of stdio,
! 37: * in particular, macros and private variables.
! 38: */
! 39:
! 40: extern int __sflush(FILE *);
! 41: extern FILE *__sfp(void);
! 42: extern int __srefill(FILE *);
! 43: extern int __sread(FILE *, char *, int);
! 44: extern int __swrite(FILE *, char const *, int);
! 45: extern fpos_t __sseek(FILE *, fpos_t, int);
! 46: extern int __sclose(FILE *);
! 47: extern void __sinit(void);
! 48: extern void _cleanup(void);
! 49: extern void (*__cleanup)(void);
! 50: extern void __smakebuf(FILE *);
! 51: extern int _fwalk(int (*)(FILE *));
! 52: extern int __swsetup(FILE *);
! 53: extern int __sflags(const char *, int *);
! 54:
! 55: extern int __sdidinit;
! 56:
! 57: /*
! 58: * Return true iff the given FILE cannot be written now.
! 59: */
! 60: #define cantwrite(fp) \
! 61: ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
! 62: __swsetup(fp))
! 63:
! 64: /*
! 65: * Test whether the given stdio file has an active ungetc buffer;
! 66: * release such a buffer, without restoring ordinary unread data.
! 67: */
! 68: #define HASUB(fp) ((fp)->_ub._base != NULL)
! 69: #define FREEUB(fp) { \
! 70: (fp)->_ub._base = NULL; \
! 71: }
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